Previously we would merge all reports in a 15-second window.
Now we use a 'quantum' of 3 seconds, similar to the single-user app.
E.g. a 30-node cluster will have 150 individual reports over 15
seconds, but the new code will merge 5 pre-merged reports plus 20-ish
very recent individual ones.
This limits the max heap size used for deserialising, since we only do
3 seconds at once per instance.
Individual reports are still put into the cache, but should get
displaced by the pre-merged ones under LRU.
In a multitenant system it is useful to be able to drill into which
tenants have the most or biggest reports.
Signed-off-by: Bryan Boreham <bryan@weave.works>
* Pass Go context down to Renderers
This is useful for cancellation or tracing.
* Add tracing spans to app
Also log things like number of nodes in Map, total number of reports.
- Add a new client in probe/kubernetes/client.go
which will be used to fetch details of Snapshot CRD
- Visualize VolumeSnapshot and VolumeSnapshotData
- Add adjacency between PV and VolumeSnapshot
- Add adjacency between VolumeSnapshot and VolumeSnapshotData
- Add snapshot filter to hide and show snapshots
Signed-off-by: Akash Srivastava <akash.srivastava@openebs.io>
"github.com/NYTimes/gziphandler" keeps a pool of gzip writers, which
saves on garbage-collection.
Also the old one, github.com/PuerkitoBio/ghost, is marked "Status : Unmaintained"
When we know we have the only reference to a Report or Node object we
can avoid copying the data to change it. Add "Unsafe" variants of
various Merge operations which mutate the receiver, and a new Merger
which takes advantage of them.
- Refactor dotted edge logic.
- Change Storage view to show storage components as well as all
the pods.
- Sentence case storage related variables.
Signed-off-by: Satyam Zode <satyam.zode@openebs.io>
This will:
- Add StorageClass resource. Storage classes are mentioned
in the PVC spec. We're using storage class name from PVC spec to
add adjacency to the PVC node.
- Add square sheet shape for StorageClass.
- Add storage filter in the PODS topology.
Storage Filter will allow user to see distinct view of
stateful applications.
- Add visually distinct edge to show storage adjacency.
Signed-off-by: Satyam Zode <satyam.zode@openebs.io>
This will
- Add Kubernetes volume resources such as PV, PVC.
- Add shapes for Kubernetes PV and PVC
- Add `Cylinder` shape for PV and `Dotted Cylinder` shape for PVC.
Signed-off-by: Satyam Zode <satyam.zode@openebs.io>
* Sentence cased text everywhere
Follows Weave Cloud's direction of sentence case on most things.
* More space between sorter caret and label
* Use full topology name for table header
